\begin{tabular}{lccc} \toprule \toprule
Variable                    &       Control & Treatment & Difference \\
\addlinespace \hline \\
High income &  0.328 &  0.297 & -0.031\\
Test score in 4th grade & 395.794 & 396.263 &  0.468\\
\hline \hline
\end{tabular}
